How to download Firefox offline installers

Ghacks

You can download offline versions of Firefox from the Mozilla website or from the FTP server. Both let you download Firefox for all supported operating systems, architectures, and languages.

The core difference between the two options is that you can download any version of Firefox from the FTP server but not from the website.

So, if you always wanted to check out Firefox 0.10, Firefox 4.0, or Firefox 25.0, now is your chance to do so.

Use the following links to open the Firefox offline installer download pages on the Mozilla website:

- Firefox Stable (offline): https://www.mozilla.org/firefox/all/
- Firefox ESR (offline): https://www.mozilla.org/en-US/firefox/organizations/all/
- Firefox Beta (offline): https://www.mozilla.org/firefox/beta/all/
- Firefox Developer Edition (offline): https://www.mozilla.org/firefox/developer/all/
- Firefox Nightly (offline): https://www.mozilla.org/firefox/nightly/all/

You access the Mozilla FTP server via HTTP right now using the following URL:

https://ftp.mozilla.org/pub/firefox/releases/

Tip: You can modify the URL of the download page easily to jump directly to specific releases. The URL structure is http://ftp.mozilla.org/pub/firefox/releases/60.0/win64/en-US/.

Simply change the following directories:

- version: 60.0
- platform: win64
- language code: en-US

While you can download full versions of the Firefox web browser from third-party download portals as well, there is no need to do so unless you want to download a portable version of Firefox.